package servlet;

import pojo.User;
import service.UserService;
import service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

//注解
@WebServlet(urlPatterns = "/toUpdate")
public class ToUpdateUserServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        // 1请求编码设置
        req.setCharacterEncoding("UTF-8");
        // 获取参数
        String sid = req.getParameter("id");
        int id = Integer.parseInt(sid);
        //TODO 创建业务层对象
        UserService userService = new UserServiceImpl();
        User users = userService.findUserById(id);
        //将数据显示出来

        //把数据放到请求域中
        req.setAttribute("user",users);
        //在哪个页面显示数据
        req.getRequestDispatcher("/updateUser.jsp").forward(req,resp);

    }
}
